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    <title>Document</title>
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<script>
    //将数组[1,2,7,4,9,6,8,3,10,5]进行排序，
    //升序结果为：[1,2,3,4,5,6,7,8,9,10]，
    //倒序结果：[10,9,8,7,6,5,4,3,2,1]
    let shu=[1,2,4,9,6,8,3,10,5]
    shu.sort(function (a, b) {
        return a - b;
    });
    console.log(shu);
    shu.sort(function (a, b) {
        return b - a;
    });
    console.log(shu)

</script>
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